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Auto merge of #92461 - rust-lang:const_tls_local_panic_count, r=Mark-Simulacrum

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Use const initializer for LOCAL_PANIC_COUNT

This reduces the size of the __getit function for LOCAL_PANIC_COUNT and should speed up accesses of LOCAL_PANIC_COUNT a bit.
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bors 2022-05-23 13:04:59 +00:00
commit ef9b49881b
1 changed files with 1 additions and 1 deletions
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library/std/src/panicking.rs
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@ -325,7 +325,7 @@ pub mod panic_count {
pub const ALWAYS_ABORT_FLAG: usize = 1 << (usize::BITS - 1);
// Panic count for the current thread.
thread_local! { static LOCAL_PANIC_COUNT: Cell<usize> = Cell::new(0) }
thread_local! { static LOCAL_PANIC_COUNT: Cell<usize> = const { Cell::new(0) } }
// Sum of panic counts from all threads. The purpose of this is to have
// a fast path in `is_zero` (which is used by `panicking`). In any particular